EP3592008A1 - Verfahren und vorrichtung zur verwendung von ladn in drahtloskommunikationssystem - Google Patents

Verfahren und vorrichtung zur verwendung von ladn in drahtloskommunikationssystem Download PDF

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Publication number
EP3592008A1
EP3592008A1 EP19765633.3A EP19765633A EP3592008A1 EP 3592008 A1 EP3592008 A1 EP 3592008A1 EP 19765633 A EP19765633 A EP 19765633A EP 3592008 A1 EP3592008 A1 EP 3592008A1
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EP
European Patent Office
Prior art keywords
ladn
information
amf
service
registration
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP19765633.3A
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English (en)
French (fr)
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EP3592008A4 (de
Inventor
Hyunsook Kim
Laeyoung Kim
Jinsook RYU
Myungjune YOUN
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LG Electronics Inc
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LG Electronics Inc
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Publication date
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Publication of EP3592008A1 publication Critical patent/EP3592008A1/de
Publication of EP3592008A4 publication Critical patent/EP3592008A4/de
Withdrawn legal-status Critical Current

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/10—Connection setup
    • H04W76/12—Setup of transport tunnels
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/50—Service provisioning or reconfiguring
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W60/00—Affiliation to network, e.g. registration; Terminating affiliation with the network, e.g. de-registration
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W60/00—Affiliation to network, e.g. registration; Terminating affiliation with the network, e.g. de-registration
    • H04W60/04—Affiliation to network, e.g. registration; Terminating affiliation with the network, e.g. de-registration using triggered events
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W8/00—Network data management
    • H04W8/02—Processing of mobility data, e.g. registration information at HLR [Home Location Register] or VLR [Visitor Location Register]; Transfer of mobility data, e.g. between HLR, VLR or external networks
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W8/00—Network data management
    • H04W8/02—Processing of mobility data, e.g. registration information at HLR [Home Location Register] or VLR [Visitor Location Register]; Transfer of mobility data, e.g. between HLR, VLR or external networks
    • H04W8/06—Registration at serving network Location Register, VLR or user mobility server
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W8/00—Network data management
    • H04W8/18—Processing of user or subscriber data, e.g. subscribed services, user preferences or user profiles; Transfer of user or subscriber data

Definitions

  • the present invention relates to a wireless communication system and, more particularly, to a method for a User Equipment (UE) to utilize Local Area Data Network (LADN) and an apparatus for supporting the same.
  • UE User Equipment
  • LADN Local Area Data Network
  • Mobile communication systems have been developed to provide voice services, while guaranteeing user activity.
  • Service coverage of mobile communication systems has extended even to data services, as well as voice services, and currently, an explosive increase in traffic has resulted in shortage of resource and user demand for high speed services, requiring advanced mobile communication systems.
  • the requirements of the next-generation mobile communication system may include supporting huge data traffic, a remarkable increase in the transfer rate of each user, the accommodation of a significantly increased number of connection devices, very low end-to-end latency, and high energy efficiency.
  • various techniques such as small cell enhancement, dual connectivity, massive Multiple Input Multiple Output (MIMO), in-band full duplex, non-orthogonal multiple access (NOMA), supporting super-wide band, and device networking, have been researched.
  • An object of the present invention proposes a method for a UE to utilize LADN efficiently.
  • an object of the present invention proposes a method for providing LADN information which is optimized for an LADN service.
  • an object of the present invention proposes a method for discovering LADN for a non-subscription model.
  • a method of establishing a protocol data unit (PDU) session for a local area data network (LADN) service by a user equipment (UE) in a wireless communication system may include transmitting to an Access and mobility Management Function (AMF), a registration request including information for informing a request of LADN information for the LADN service; receiving, from the AMF, a registration accept for informing that the registration request is accepted, the registration accept including the LADN information; and establishing a PDU session for the LADN service by performing a PDU session establishment procedure.
  • AMF Access and mobility Management Function
  • a user equipment (UE) configured to establish a protocol data unit (PDU) session for a local area data network (LADN) service in a wireless communication system
  • UE user equipment
  • LADN local area data network
  • the processor may be configured to perform: transmitting to an Access and mobility Management Function (AMF), a registration request including information for informing a request of LADN information for the LADN service; receiving, from the AMF, a registration accept for informing that the registration request is accepted, the registration accept including the LADN information; and establishing a PDU session for the LADN service by performing a PDU session establishment procedure.
  • AMF Access and mobility Management Function
  • the registration request may further include a separator for separating the request of only the LADN information that supports a service in the AMF or the request of the LADN information which is commonly applied to Public Land Mobile Network (PLMN) and/or version information of the LADN information which was received previously.
  • PLMN Public Land Mobile Network
  • the registration accept may include only the LADN information that supports a service in the AMF or the LADN information which is commonly applied to the PLMN.
  • the registration accept may include only the LADN information of which version is updated in comparison with the version information of the LADN information.
  • a policy for the LADN discovery is setup, and when the UE decides a discovery of the LADN information based on the policy for the LADN discovery, the registration request may be transmitted to the AMF.
  • the UE may decide a discovery of the LADN information.
  • the policy for an LADN discovery may be independently decided for each UE.
  • the policy for an LADN discovery may be preconfigured to the UE.
  • the policy for an LADN discovery may be received from the AMF.
  • a UE may utilize LADN efficiently.
  • it may be prevented a reception of unnecessary LADN information whenever a UE resisters/update of LADN information is occurred.
  • LADN discovery policy is generated (determined) for each UE, more flexible LADN service may be provided for each UE.
  • a base station in this document is regarded as a terminal node of a network, which performs communication directly with a UE.
  • particular operations regarded to be performed by the base station may be performed by an upper node of the base station depending on situations.
  • various operations performed for communication with a UE can be performed by the base station or by network nodes other than the base station.
  • the term Base Station (BS) can be replaced with a fixed station, Node B, evolved-NodeB (eNB), Base Transceiver System (BTS), or Access Point (AP).
  • a terminal can be fixed or mobile; and the term can be replaced with User Equipment (UE), Mobile Station (MS), User Terminal (UT), Mobile Subscriber Station (MSS), Subscriber Station (SS), Advanced Mobile Station (AMS), Wireless Terminal (WT), Machine-Type Communication (MTC) device, Machine-to-Machine (M2M) device, or Device-to-Device (D2D) device.
  • UE User Equipment
  • MS Mobile Station
  • MSS User Terminal
  • SS Mobile Subscriber Station
  • AMS Advanced Mobile Station
  • WT Wireless Terminal
  • MTC Machine-Type Communication
  • M2M Machine-to-Machine
  • D2D Device-to-Device
  • downlink refers to communication from a base station to a terminal
  • uplink refers to communication from a terminal to a base station.
  • DL downlink
  • UL uplink
  • a transmitter can be part of the base station
  • a receiver can be part of the terminal
  • uplink transmission a transmitter can be part of the terminal, and a receiver can be part of the base station.
  • Embodiments of the present invention can be supported by standard documents disclosed in at least one of wireless access systems including the IEEE 802, 3GPP, and 3GPP2 specifications.
  • those steps or parts omitted for the purpose of clearly describing technical principles of the present invention can be supported by the documents above.
  • all of the terms disclosed in this document can be explained with reference to the standard documents.
  • a 5G system is an advanced technology from 4G LTE mobile communication technology and supports a new Radio Access Technology (RAT), extended Long Term Evolution (eLTE) as an extended technology of LTE, non-3GPP access (e.g., Wireless Local Area Network (WLAN) access), etc. through the evolution of an existing mobile communication network structure or a Clean-state structure.
  • RAT Radio Access Technology
  • eLTE extended Long Term Evolution
  • WLAN Wireless Local Area Network
  • 5G system architecture is defined to support data connection and service such that deployment can use technologies such as network function virtualization and software defined networking.
  • the 5G system architecture utilizes service-based interaction between control plane (CP) and network function (NF).
  • CP control plane
  • NF network function
  • FIG. 1 illustrates a wireless communication system architecture to which the present invention is applicable.
  • the 5G system architecture may include various components (i.e., network functions (NFs)), and FIG. 1 shows some of the components.
  • NFs network functions
  • Access and Mobility Management Function supports functions such as signaling between CN nodes for mobility between 3GPP access networks, termination of a radio access network (RAN) CP interface (N2), termination of NAS signaling (N1), registration management (registration area management), idle mode UE reachability, network slicing support, SMF selection, and the like.
  • Some or all functions of the AMF may be supported in a single instance of one AMF.
  • DN Data network
  • PDU downlink protocol data unit
  • PCF Policy Control function
  • Session Management Function provides a session management function and may be managed by different SMFs per session when the UE has a plurality of sessions.
  • Some or all functions of the SMF may be supported in a single instance of one SMF.
  • Unified Data Management stores user subscription data, policy data and the like.
  • UPF User plane Function forwards a downlink PDU received from the DN to the UE via a (R)AN and forwards an uplink PDU received from the UE to the DN via the (R)AN.
  • R User plane Function
  • Application Function interacts with a 3GPP core network for service provision (e.g., supporting functions such as application influence on traffic routing, network capability exposure access, and interaction with policy framework for policy control).
  • service provision e.g., supporting functions such as application influence on traffic routing, network capability exposure access, and interaction with policy framework for policy control.
  • Radio Access Network (R)AN) is a generic term for new radio access networks supporting both of evolved E-UTRA (E-UTRA) which is an evolved version of 4G radio access technology and New Radio (NR) access technology (e.g., gNB).
  • E-UTRA evolved E-UTRA
  • NR New Radio
  • the gNB supports functions such as functions for radio resource management (i.e., radio bearer control, radio admission control, connection mobility control, dynamic allocation of resources to UE on uplink/downlink (i.e., scheduling), and the like.
  • radio resource management i.e., radio bearer control, radio admission control, connection mobility control, dynamic allocation of resources to UE on uplink/downlink (i.e., scheduling), and the like.
  • the User Equipment refers to a user device.
  • a conceptual link connecting NFs in a 5G system is defined as a reference point.
  • N1 means a reference point between the UE and the AMF
  • N2 means a reference point between the (R)AN and the AMF
  • N3 means a reference point between the (R)AN and the UPF
  • N4 means a reference point between the SMF and the UPF
  • N5 means a reference point between the PCF and the AF
  • N6 means a reference point between the UPF and a data network
  • N7 means a reference point between the SMF and the PCF
  • N24 means a reference point between the PCF in a visited network and the PCF in a home network
  • N8 means a reference point between the UDM and the AMF
  • N9 means a reference point between two core UPFs
  • N10 means a reference point between the UDM and the SMF
  • N11 means a reference point between the AMF and the SMF
  • N12 means a reference point between the AMF and the SMF
  • N12 NG9
  • FIG. 1 illustrates a reference model for cases in which a UE accesses a single DN using a single PDU session for the convenience of description, the present invention is not limited thereto.
  • FIG. 2 is a diagram illustrating a wireless protocol stack in a wireless communication system to which the present invention is applicable.
  • FIG. 2(a) illustrates a radio interface user plane protocol stack between a UE and gNB
  • FIG. 2(b) illustrates a radio interface control plane protocol stack between the UE and the gNB.
  • the control plane means a path through which control messages used for a UE and a network to manage calls are transmitted.
  • the user plane means a path through which data generated in an application layer, for example, voice data, Internet packet data, and so on are transmitted.
  • the user plane protocol stack may be divided into Layer 1 (i.e., physical (PHY) layer) and Layer 2.
  • Layer 1 i.e., physical (PHY) layer
  • Layer 2 Layer 2
  • control plane protocol stack may be divided into Layer 1 (i.e., PHY layer), Layer 2, Layer 3 (i.e., radio resource control (RRC) layer), and a Non-Access Stratum (NAS) layer.
  • Layer 1 i.e., PHY layer
  • Layer 2 i.e., radio resource control (RRC) layer
  • RRC radio resource control
  • NAS Non-Access Stratum
  • the Layer 2 is divided into a Medium Access Control (MAC) sublayer, a Radio Link Control (RLC) sublayer, a Packet Data Convergence Protocol (PDC) sublayer, and a Service Data Adaptation Protocol (SDAP) sublayer (in case of the user plane).
  • MAC Medium Access Control
  • RLC Radio Link Control
  • PDC Packet Data Convergence Protocol
  • SDAP Service Data Adaptation Protocol
  • a radio bearer is classified into two groups: data radio bearer (DRB) for user plane data and signaling radio bearer (SRB) for control plane data.
  • DRB data radio bearer
  • SRB signaling radio bearer
  • LADN Local Area Data Network
  • LADN The access to a DN via a PDU Session for a LADN is only available in a specific LADN service area.
  • a LADN service area is a set of Tracking Areas.
  • LADN is a service provided by the serving PLMN of the UE:
  • FIG. 3 is a diagram for describing a method for providing LADN information and an LADN service area in a wireless communication system to which the present invention is applicable.
  • LADN Information i.e. LADN service area information and LADN DNN
  • LADN DNN1 LADN, service area
  • the configured LADN service area is the same regardless of other factors (e.g. UE's registration area or UE subscription information).
  • LADN Information is provided by AMF to the UE during the Registration procedure or UE Configuration Update procedure (first step in FIG. 3(a) ).
  • the corresponding LADN service area information includes a set of Tracking Areas that belong to the current Registration Area of the UE (i.e. the intersection of the LADN service area and the current Registration Area).
  • the AMF may provide to the UE, based on local configuration about LADN, on UE location and on UE subscription information received from the UDM about subscribed DNN, the LADN Information for the LADNs available to the UE in that Registration Area in the Registration Accept message (second step in FIG. 3(a) ).
  • the UE deletes the LADN Information for such DNN (third step in FIG. 3(a) ).
  • the AMF updates LADN Information to the UE through UE Configuration Update/Registration procedure (second step in FIG. 3(a) ).
  • the UE Based on the LADN Information in the UE, the UE operates as follows:
  • the SMF supporting a DNN is configured with information about whether this DNN is a LADN DNN or not;
  • the SMF subscribes to "UE mobility event notification" for reporting UE presence in Area of Interest (e.g., LADN service area) by providing LADN DNN to the AMF.
  • Area of Interest e.g., LADN service area
  • FIG. 4 is a diagram illustrating a UE mobility event notification and a location report procedure of an NG-RAN in a wireless communication system to which the present invention is applicable.
  • 5G System supports the functionality of tracking and reporting UE mobility events.
  • the AMF provides the UE mobility related event reporting to NF that has been authorized to subscribe to the UE mobility event reporting service.
  • An NF service consumer such as SMF, PCF or Network Exposure Function (NEF) that wants to be reported on the UE location is able to subscribe to the UE mobility event notification service (e.g., 'Namf_EventExposure_Notify')to the AMF with the following parameters (first step of FIG. 4 ):
  • the AMF tracks UE's location considering UE's Connection Management (CM) state and using NG-RAN location reporting (if RRC Inactive state applies to NG-RAN) in order to determine the UE presence in the area of Interest.
  • CM Connection Management
  • the AMF may request a UE location or a report for a UE presence in the area of Interest. Further, the AMF may be reported with a UE presence in the area of interest and/or a current UE location (or a time stamp and a UE location which is lastly known). These procedures are not necessarily performed.
  • the AMF Upon detecting the change of the UE presence in the area of interest, the AMF notifies the UE presence in the area of Interest and the new UE location to the subscribed NF consumer (selectively) (second step of FIG. 4 ).
  • the subscription of mobility event is transferred from the old AMF.
  • the new AMF may decide not to notify the SMF with the current status related to the subscription of mobility event if the new AMF determines that, based on Mobility Management (MM) Context of the UE, the event is reported by the old AMF.
  • MM Mobility Management
  • the AMF may initiate the NG-RAN location reporting to track the UE presence in the area of interest.
  • FIG. 5 is a diagram for describing a report of UE presence in LADN service area in a wireless communication system to which the present invention is applicable.
  • the AMF decides a UE presence (i.e., IN, OUT and UNKNOWN) in the area of interest (i.e., LADN service area) as below.
  • the AMF decides the UE presence in the area of interest (e.g., LADN service area), and as described in the second step of FIG. 4 above, provides the UE presence to an NF (e.g., SMF) which is allowed to subscribe to a UE mobility event report service (e.g., Namf_EventExposure_Notify).
  • an NF e.g., SMF
  • a UE mobility event report service e.g., Namf_EventExposure_Notify
  • the SMF Based on the notification about the UE presence in LADN service area notified by AMF (i.e. IN, OUT and UNKNOWN), the SMF operates as follows based on operator's policy:
  • a UE/user subscribed in an LADN service has a possibility of receiving too much LADN information from a network. That is, according to the conventional art, an optimization for LADN information forwarding is not considered.
  • a UE is roaming to a visited network, in order for the UE to receive the LADN service used in the visited network, it is required to have the subscriber information in which use of wildcard DNN is allowed.
  • the UE that has the subscriber information in which use of wildcard DNN is allowed has a problem of receiving all types of LADN information provided by the visited network whenever a registration is performed/update of LADN information is occurred.
  • the present invention proposes an optimization method of LADN information forwarding.
  • the present invention may include a combination of one or more elements below, and in the following embodiment, an embodiment for representing each of the individual elements is shown, but it is available an embodiment in which one or more combination is constructed together.
  • FIG. 6 is a diagram illustrating an LADN information forwarding method according to an embodiment of the present invention.
  • the UE may receive a policy for LADN discovery (or policy for LADN discovery request; hereinafter, LADN discovery policy) through a PCF which is a node for configuring/controlling/managing a provider policy.
  • LADN discovery policy policy for LADN discovery request
  • the PCF may generate LADN discovery policy or decide to provide it based on an input of an LADN DN/AF or an NEF, as described in step 2a or 2b.
  • the LADN discovery policy may be generated according to a specific granularity which is targeted to PLMN entire groups or managed by a provider.
  • the LADN discovery policy since the LADN discovery policy is forwarded to an individual UE by UE policy forwarding mechanism, it can be regarded as a sort of various UE policies, and accordingly, the LADN discovery policy may be generated by a granularity for each UE.
  • the LADN discovery policy is forwarded for the purpose that a UE starts to perform LADN discovery, basically.
  • the LADN discovery policy may include a validity condition such that the corresponding LADN discovery policy is evaluated as a meaningful policy in a specific region/specific time/specific access network.
  • the LADN information which was continuously provided by the conventional art in step 1, may not be forwarded to the UE, and the UE obtains the LADN information by trying LADN discovery on a specific timing by the LADN discovery policy, and accordingly, efficiency of LADN information provision may be increased.
  • the LADN discovery policy may also include a policy for an operation that the UE may perform such as retrial of obtaining the LADN information.
  • FIG. 7 is a diagram illustrating a policy forwarding method for LADN discovery according to an embodiment of the present invention.
  • the policy forwarding method for the LADN discovery may be implemented by a UE Configuration Update procedure.
  • the UE Configuration Update procedure is initiated when a PCF wants to update a UE access in a UE configuration and PDU session selection information (i.e., UE policy).
  • the UE may start a procedure for requesting a PDU session setup (i.e., UE-initiated PDU session establishment procedure) without a user interaction.
  • a PDU session setup i.e., UE-initiated PDU session establishment procedure
  • the UE may display a pop-up window for receiving an explicit input for an actual access/service start from a user.
  • the UE performs UE-initiated PDU session establishment procedure, and accordingly, configures/establishes a PDU session for the corresponding LADN service.
  • the UE may receive such an explicit input in an application level through a LADN related application from the user.
  • FIG. 8 is a diagram for a method for utilizing LADN according to an embodiment of the present invention.
  • a UE may configure a policy for an LADN discovery (step, S801).
  • the policy for an LADN discovery may be preconfigured to the UE.
  • the policy for an LADN discovery may be configured by receiving a policy for an LADN discovery generated by a PCF from an AMF.
  • the policy for an LADN discovery may be independently decided (generated) for each UE.
  • the UE transmits a registration request to the AMF (step, S802).
  • the registration request includes information for informing an LADN information request for an LADN service.
  • the registration request may further include a separator for separating the request of only the LADN information that supports a service in the AMF or the request of the LADN information which is commonly applied to Public Land Mobile Network (PLMN) and/or version information of the LADN information which was received previously.
  • PLMN Public Land Mobile Network
  • a policy for the LADN discovery when the UE decides a discovery of the LADN information based on the policy for the LADN discovery, the UE may transmit the registration request to the AMF. For example, when a validity condition included in the policy for the LADN discovery is satisfied or the UE identifies that the UE enters the LDAN service area (on the time when a LADN service is provided), the UE may decide a discovery of the LADN information.
  • the UE receives a registration accept for informing that the registration request is accepted (step, S803).
  • the registration accept includes the LADN information.
  • the registration accept may include only the LADN information that supports a service in the AMF or the LADN information which is commonly applied to the PLMN.
  • the registration accept may include only the LADN information of which version is updated in comparison with the version information of the LADN information.
  • the UE By performing PDU session establishment procedure, the UE establishes a PDU session for the LADN service (step, S804).
  • FIG. 9 illustrates a block diagram of a User Equipment according to an embodiment of the present invention.
  • a User Equipment may include an LADN policy configuration unit 901, a registration management unit 902, an LADN information management unit 903 and a PDU session management unit 904.
  • the LADN policy configuration unit 901 configures a policy for an LADN discovery.
  • the policy for an LADN discovery may be preconfigured to the UE.
  • the policy for an LADN discovery may be configured by receiving the policy for an LADN discovery which is generated by a PCF to an AMF.
  • the policy for an LADN discovery may be independently decided (generated) for each UE.
  • the registration management unit 902 transmits a registration request to the AMF.
  • the registration request includes information for informing a request of LADN information for an LADN service.
  • the registration request may further include a separator for separating a request of only the LADN information that supports a service in the AMF or a request of the LADN information which is commonly applied to a Public Land Mobile Network (PLMN) and/or version information of the LADN information which is previously received.
  • PLMN Public Land Mobile Network
  • the registration management unit 902 may transmit the registration request to the AMF. For example, when a validity condition included in the policy for an LADN discovery configured by the LADN policy configuration unit 901 or detects that the UE enters an LADN service area (on the time when the LADN service is provided), the registration management unit 902 may decide a discovery of the LADN information.
  • the registration management unit 902 receives a registration accept for informing that the registration request is accepted from the AMF.
  • the registration accept includes the LADN information.
  • the registration accept may include only the LADN information that supports a service in the AMF or the LADN information which is commonly applied in the PLMN.
  • the registration accept may include only the LADN information of which version is updated in comparison with the version information of the LADN information.
  • the LADN information management unit 903 manages the LADN information which is obtained through the registration management unit 902.
  • the PDU session management unit 904 performs a PDU session establishment procedure.
  • the PDU session management unit 904 may establish a PDU session for the LADN service by being interlinked with the LADN information management unit 903.
  • FIG. 10 illustrates a block diagram of a User Equipment according to an embodiment of the present invention.
  • a User Equipment (UE) 1010 includes a processor 1011, a memory 1012 and a transceiver (or a radio frequency (RF) unit) 1013.
  • UE User Equipment
  • RF radio frequency
  • the processor 1011 implements the functions, processes and/or methods proposed in FIGS. 1 to 8 above. Particularly, each of the elements of the UE exemplified in FIG. 9 above may be included in the processor 1011.
  • the layers of wired or wireless interface protocol may be implemented by the processor 1011.
  • the memory 1012 is connected to the processor 1011, and stores various types of information for driving the processor 1011.
  • the transceiver 1013 is connected to the processor 1011, and transmits and/or receives radio signals.
  • the memory 1012 may be located interior or exterior of the processor 1011, and may be connected to the processor 1011 with well known means.
  • the processor 1011 may configure a policy for an LADN discovery.
  • the policy for an LADN discovery may be preconfigured in the memory 1012.
  • the processor 1011 may receive a policy for an LADN discovery generated by a PCF from an AMF through the transceiver 1013.
  • the policy for an LADN discovery may be independently decided (generated) for each UE.
  • the processor 1011 transmits a registration request to the AMF through the transceiver 1013.
  • the registration request includes information for informing a request of LADN information for an LADN service.
  • the registration request may further include a separator for separating a request of only the LADN information that supports a service in the AMF or a request of the LADN information which is commonly applied to a Public Land Mobile Network (PLMN) and/or version information of the LADN information which is previously received.
  • PLMN Public Land Mobile Network
  • the processor 1011 when the processor 1011 decides a discovery of the LADN information based on the policy for an LADN discovery configured by the processor 1011, may transmit the registration request to the AMF through the transceiver 1013. For example, when a validity condition included in the policy for an LADN discovery configured by the LADN policy configuration unit 901 or detects that the UE enters an LADN service area (on the time when the LADN service is provided), the processor 1011 may decide a discovery of the LADN information.
  • the processor 1011 receives a registration accept for informing that the registration request is accepted from the AMF through the transceiver 1013.
  • the registration accept includes the LADN information.
  • the registration accept may include only the LADN information that supports a service in the AMF or the LADN information which is commonly applied in the PLMN.
  • the registration accept may include only the LADN information of which version is updated in comparison with the version information of the LADN information.
  • the processor 1011 establishes a PDU session for the LADN service by performing a PDU session establishment procedure.
  • FIG. 11 illustrates a method for utilizing LADN according to an embodiment of the present invention.
  • an AMF may transmit a policy for an LADN discovery which is received from a PCF to a UE (step, S1101).
  • the policy for an LADN discovery may be independently decided (generated) for each UE.
  • the AMF receives a registration request from the UE (step, S1102).
  • the registration request includes information for informing an LADN information request for an LADN service.
  • the AMF checks whether the registration request further includes a separator for separating the request of only the LADN information that supports a service in the AMF or the request of the LADN information which is commonly applied to Public Land Mobile Network (PLMN) and/or version information of the LADN information which was received previously (step, S1103).
  • PLMN Public Land Mobile Network
  • the AMF transmits a registration accept for informing that the registration request is accepted to the UE (step, S1105).
  • the registration accept includes the LADN information.
  • the LADN information may correspond to the LADN information that the AMF transmits to the UE according to the conventional art.
  • the AMF decides not only the registration procedure of the conventional art, but also the LADN information to be transmitted based on the separator and/or the version information additionally (step, S1104).
  • the AMF may include only the LADN information that supports a service in the AMF in the registration accept or include the LADN information which is commonly applied to the PLMN in the registration accept.
  • the AMF may include only the LADN information of which version is updated in comparison with the version information of the LADN information in the registration accept.
  • the AMF operates as below.
  • the AMF may include only the LADN information of which version is updated in comparison with the version information of the LADN information received among the LADN information that supports a service in the AMF in the registration accept.
  • the AMF may include only the LADN information of which version is updated in comparison with the version information of the LADN information received among the LADN information which is commonly applied to the PLMN in the registration accept.
  • FIG. 12 illustrates a block diagram of a network node according to an embodiment of the present invention.
  • a network node may include an LADN policy management unit 1201, a registration management unit 1202 and an LADN information management unit 1203.
  • the LADN policy management unit 1201 manages a policy for an LADN discovery received from a PCF, and transmits the policy for an LADN discovery to a UE through the registration management unit 1202.
  • the policy for an LADN discovery may be independently decided (generated) for each UE.
  • the registration management unit 1202 receives a registration request to the UE.
  • the registration request includes information for informing a request of LADN information for an LADN service.
  • the LADN information management unit 1203 checks whether the registration request further includes a separator for separating the request of only the LADN information that supports a service in the AMF or the request of the LADN information which is commonly applied to Public Land Mobile Network (PLMN) and/or version information of the LADN information which was received previously.
  • PLMN Public Land Mobile Network
  • the LADN information management unit 1203 may forward the LADN information that the AMF transmits to the UE according to the conventional art to the registration management unit 1202.
  • the LADN information management unit 1203 decides the LADN information to be transmitted based on the separator and/or the version information.
  • the LADN information management unit 1203 may forward only the LADN information that supports a service in the AMF or forward the LADN information which is commonly applied to the PLMN to the registration management unit 1202.
  • the LADN information management unit 1203 may forward only the LADN information of which version is updated in comparison with the version information of the LADN information to the registration management unit 1202.
  • the LADN information management unit 1203 operates as below.
  • the LADN information management unit 1203 may forward only the LADN information of which version is updated in comparison with the version information of the LADN information received among the LADN information that supports a service in the AMF to the registration management unit 1202.
  • the LADN information management unit 1203 may forward only the LADN information of which version is updated in comparison with the version information of the LADN information received among the LADN information which is commonly applied to the PLMN to the registration management unit 1202.
  • the registration management unit 1202 transmits a registration accept for informing that the registration request including the LADN information forwarded from the LADN information management unit 1203 is accepted to the UE.
  • FIG. 13 illustrates a block diagram of a network node according to an embodiment of the present invention.
  • a network node 1310 includes a processor 1311, a memory 1312 and a transceiver 1313.
  • the processor 1311 implements the functions, processes and/or methods proposed in FIGS. 1 to 8 , FIG. 11 and FIG. 12 above. Particularly, each of the elements of the network node exemplified in FIG. 12 above may be included in the processor 1311.
  • the layers of wired or wireless interface protocol may be implemented by the processor 1311.
  • the memory 1312 is connected to the processor 1311, and stores various types of information for driving the processor 1311.
  • the transceiver 1313 is connected to the processor 1311, and transmits and/or receives radio signals.
  • the memory 1312 may be located interior or exterior of the processor 1311, and may be connected to the processor 1311 with well known means.
  • An example of the network node 1310 may correspond to a network entity (e.g., AMF, SMF, (R)AN, UPF, PCF, etc.) illustrated in FIG. 1 above.
  • a network entity e.g., AMF, SMF, (R)AN, UPF, PCF, etc.
  • the processor 1311 may transmit the policy for an LADN discovery received from a PCF to a UE through the transceiver 1313.
  • the policy for an LADN discovery may be independently decided (generated) for each UE.
  • the processor 1311 receives a registration request to the UE through the transceiver 1313.
  • the registration request includes information for informing an LADN information request for an LADN service.
  • the AMF checks whether the registration request further includes a separator for separating the request of only the LADN information that supports a service in the AMF or the request of the LADN information which is commonly applied to Public Land Mobile Network (PLMN) and/or version information of the LADN information which was received previously.
  • PLMN Public Land Mobile Network
  • the processor 1311 transmits a registration accept for informing that the registration request is accepted to the UE through the transceiver 1313.
  • the registration accept is transmitted with being included in the LADN information.
  • the LADN information may correspond to the LADN information that the AMF transmits to the UE according to the conventional art.
  • the processor 1311 decides the LADN information to be transmitted based on the separator and/or the version information.
  • the processor 1311 may include only the LADN information that supports a service in the AMF in the registration accept or include the LADN information which is commonly applied to the PLMN in the registration accept.
  • the processor 1311 may include only the LADN information of which version is updated in comparison with the version information of the LADN information in the registration accept.
  • the processor 1311 operates as below.
  • the processor 1311 may include only the LADN information of which version is updated in comparison with the version information of the LADN information received among the LADN information that supports a service in the AMF in the registration accept.
  • the processor 1311 may include only the LADN information of which version is updated in comparison with the version information of the LADN information received among the LADN information which is commonly applied to the PLMN in the registration accept.
  • the present invention applied to 3GPP 5G system, is primarily described as an example, but may be applied to various wireless communication systems in addition to the 3GPP 5G system.

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Databases & Information Systems (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Communication Control (AREA)
EP19765633.3A 2018-05-11 2019-03-25 Verfahren und vorrichtung zur verwendung von ladn in drahtloskommunikationssystem Withdrawn EP3592008A4 (de)

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PCT/KR2019/003447 WO2019216546A1 (ko) 2018-05-11 2019-03-25 무선 통신 시스템에서 ladn 이용 방법 및 이를 위한 장치

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EP4250833A1 (de) * 2022-03-23 2023-09-27 LG Electronics, Inc. Kommunikation in bezug auf lokalisiertes servivce
WO2024072104A1 (en) * 2022-09-29 2024-04-04 Samsung Electronics Co., Ltd. Method and apparatus for policy control for restricted pdu session in wireless communication system

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KR102326159B1 (ko) * 2019-11-21 2021-11-12 주식회사 엘지유플러스 Ladn 서비스 제공을 위한 기기 및 기기의 동작 방법
US11659454B2 (en) 2020-02-27 2023-05-23 Huawei Technologies Co., Ltd. Methods, systems and apparatuses for management or network functions
CN112333824A (zh) * 2020-10-27 2021-02-05 广东电网有限责任公司广州供电局 一种上行资源调度方法和装置
WO2022090239A1 (en) * 2020-10-30 2022-05-05 Telefonaktiebolaget Lm Ericsson (Publ) Handling application functions for key management in communication device-network relay scenarios
WO2022201511A1 (ja) * 2021-03-26 2022-09-29 日本電気株式会社 通信システム、通信管理サーバ、制御装置、通信管理方法、通信制御方法及び非一時的なコンピュータ可読媒体
JPWO2023042243A1 (de) * 2021-09-14 2023-03-23

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US10362511B2 (en) * 2016-05-17 2019-07-23 Lg Electronics Inc. Method and apparatus for determining PDU session identity in wireless communication system
CN117082641A (zh) * 2016-08-22 2023-11-17 三星电子株式会社 用于无线通信网络中的区域数据网络配置的方法和系统
KR102244049B1 (ko) * 2016-08-22 2021-04-26 삼성전자 주식회사 무선 통신 네트워크에서 지역별 데이터 네트워크 구성을 위한 방법 및 시스템
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WO2020060176A1 (en) 2018-09-18 2020-03-26 Samsung Electronics Co., Ltd. Electronic device for preventing packet drop for uplink transmission
EP3827641A4 (de) * 2018-09-18 2021-09-08 Samsung Electronics Co., Ltd. Elektronische vorrichtung zur verhinderung von paketabfall für uplink-übertragung
US11147086B2 (en) 2018-09-18 2021-10-12 Samsung Electronics Co., Ltd. Electronic device for preventing packet drop for uplink transmission
EP4250833A1 (de) * 2022-03-23 2023-09-27 LG Electronics, Inc. Kommunikation in bezug auf lokalisiertes servivce
WO2024072104A1 (en) * 2022-09-29 2024-04-04 Samsung Electronics Co., Ltd. Method and apparatus for policy control for restricted pdu session in wireless communication system

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CL2019001440A1 (es) 2020-02-07
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AR114894A1 (es) 2020-10-28
KR20190131150A (ko) 2019-11-25
BR112020004785A2 (pt) 2020-12-01
PH12019501298A1 (en) 2019-12-11
KR102048046B1 (ko) 2019-11-22
MX2019005455A (es) 2020-02-07
JP2020530244A (ja) 2020-10-15
WO2019216546A1 (ko) 2019-11-14
TW201947980A (zh) 2019-12-16
KR20190129822A (ko) 2019-11-20
EP3592008A4 (de) 2020-06-10
CA3045177A1 (en) 2019-11-11

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